134 PHYLLAPLYSIA. 



figure, and sometimes they are interrupted. Examined with a glass 

 of strong magnification, they are seen to be composed of a multitude 

 of tiny blackish and brown specks. The spots on the front tentacles 

 are smaller and more numerous than the illustration shows, and, 

 moreover, are projecting, forming little warts. 



P. (?) DEPRESSA Cantraine. PL 36, figs. 13, 14. 



Length 21 lines. Body long-ovate, subdepressed ; green-buff, 

 variegated with black ; the sole wide, marginated, green marked 

 with numerous oval gray spots. 



This species is distinguished by the depressed form, the wide^ 

 margined foot, the nearly square head, distinct from the trunk and 

 carried on a very short neck. The pleuropodial lobes are very 

 small. There are four tentacles, the front pair are larger, depressed 

 and truncate at the ends ; the hind pair are nearly cylindrical, slit 

 as usual. The sides and back are greenish yellow finely vermiculate 

 with black ; buccal region and ends of the anterior tentacles yel- 

 low ; posterior tentacles (rhinophores) the color of the body. The 

 coloration of the foot is remarkable ; the ground color of clear 

 green is varied by numerous oval, gray spots. 



Ragusa Vecchia, Dalmatia. - 



Aplysia depressa CANTRAINE, Bull. Soc. Roy. Brux., ii, p. 385, 

 Malacologie Mediterraneanne et Littorale, p. 71, pi. 3, f. 1. 



Nothing is said by Cantraine of a shell. The single specimen is 

 in the Royal Museum of Leyden. Fischer places this species in his 

 genus Phyllaplysia. Compare the Petalifera species. 



P. (?) LIMACINA Blainville. PI. 43, figs. 32, 33. 



Length 35 mill. Animal limaciform, oblong, obtuse in front, 

 acute behind ; flat and depressed all around the base. Integument 

 smooth and of an obscure greenish color. Dorsal opening narrow 

 in front, gaping behind. The foot is very wide. 



Coast of Provence, 



Aplysia limacina BLAINVILLE, Journ. de Phys., xcvi, 1823, p. 

 287, f. 10 ; Diet. Sc. Nat., xxvi, p. 328 (word Lievre marin) ; Rang, 

 Hist. Nat. Aplys., p. 72, pi. 22, f. 6, 7. Not Tethys limacina 

 Linne\ Aplysia limacina auct. 



The tentacles offer no peculiar features ; the integument is very 

 smooth, and of a greenish-dusky color. Dorsal opening quite long, 

 no appearance of a mantle being visible within it. The broad foot 



